Schnelle Materialanalyse mit Lasern

Abstract

Zusammenfassung: Laseroptische Verfahren zur schnellen berührungsfreien Materialanalyse besitzen ein breites industrielles Anwendungsspektrum. Wir zeigen an ausgewählten Beispielen die Möglichkeiten der laserinduzierten Plasmaspektroskopie zur dreidimensionalen Elementanalyse (3D-LIBS) und beschreiben interessante Anwendungsfelder der Raman-Spektroskopie zur Identifikation molekularer Strukturen organischer und anorganischer Verbindungen.Schlüsselwörter: LIBS, laserinduzierte Plasmaspektroskopie, 3D-Elementanalyse, Raman-Spektroskopie, Nanopartikel-Herstellung.Abstract: Laser-optical methods for fast non-contact material analysis exhibit a wide spectrum of industrial applications. We show selected examples of the possibilities of laser-induced breakdown spectroscopy for threedimensional element analysis (3D-LIBS) and describe interesting applications of Raman spectroscopy for identifying molecular structures of organic and inorganic compounds.

Laser-Induced Breakdown Spectroscopy Imaging for Material and Biomedical Applications: Recent Advances and Future Perspectives

“…Finally, Choi et al detected radioactive hotspots in nuclear power plants by conducting an isotopic analysis of iron in structural material from the nuclear core. 85 By using double-pulse LIBS with a 355 nm wavelength for ablation and 1064 nm for reheating, the authors were able to distinguish 54 FeO molecular emission from 56 FeO molecular emission and even produced an isotopic map with a resolution of 500 μm, showing the potential for double-pulse LIBS imaging for nuclear materials.…”